潜江凹陷基于等时地层模型的地震沉积学研究  

A study on seismic sedimentology of Qianjiang depression based on isochronous stratigraphic model

作　　者：张磊 ZHANG Lei(Research Institute of Exploration and Production,Jianghan Oilfield Company,Sinopec,Wuhan,Hubei 430332,China)

机构地区：[1]中石化江汉油田分公司勘探开发研究院,湖北武汉430332

出　　处：《江汉石油职工大学学报》2023年第2期1-3,共3页Journal of Jianghan Petroleum University of Staff and Workers

摘　　要：江汉油田盐湖盆地岩性种类多、储层厚度薄且横向变化快,受地震分辨率的限制,储层预测不能完全反映同沉积时期特征,致使岩性圈闭的落实精度不够,给精准钻探造成难度。针对盐湖盆地特点和岩性勘探的需要,基于等时地质地层框架模型开展层序地层划分,结合古地貌与等时地层属性分析,明确砂体有利区带,通过地质体自动追踪,刻画异常范围,识别岩性圈闭,指导盐湖盆地岩性油藏的勘探开发。The Salt Lake Basin in Jianghan Oilfield features a wide range of lithology types,with thin reservoir thickness and rapid lateral variations.Due to the limited seismic resolution,it is challenging to fully capture the characteristics of the same sedimentary period,resulting in inadequate precision when identifying lithologic traps and hindering accurate drilling.To address the characteristics of the Salt Lake Basin and the requirements of lithologic exploration,a sequence stratigraphy division is conducted based on an isochronous geological stratigraphic framework model.By integrating the analysis of paleogeomorphology and isochronous stratigraphic attributes,the favorable zones of sand bodies are defined,the anomaly range is characterized through automatic geological body tracking,lithologic traps are identified and the exploration and production of lithologic reservoirs in the Salt Lake Basin is guided.

关 键 词：江汉油田盐湖盆地 等时地层模型 地震沉积学 

分 类 号：TE122.24[石油与天然气工程—油气勘探]